CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Cumulative Effect, Period of Adoption, Adjustment	Common Stock	Common Stock Cumulative Effect, Period of Adoption, Adjustment	Paid-in Capital	Paid-in Capital Cumulative Effect, Period of Adoption, Adjustment	Treasury Stock	Treasury Stock Cumulative Effect, Period of Adoption, Adjustment	Retained Earnings	Retained Earnings Cumulative Effect, Period of Adoption, Adjustment	Accumulated Other Comprehensive Income (loss)	Accumulated Other Comprehensive Income (loss) Cumulative Effect, Period of Adoption, Adjustment	Accumulated Defined Benefit Plans Adjustment Attributable to Parent	Interest Rate Swap Retained Earnings	Interest Rate Swap Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Parent [Member]
Balance, Beginning at Dec. 30, 2017	$ 1,361,148		$ 145		$ 374,922		$ (445,118)		$ 1,697,618		$ (266,419)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	317,152		0		0		0		317,152		0
Currency translation adjustments	(43,050)		0		0		0		0		(43,050)
Other Comprehensive (Income) Loss, Defined Benefit Plan, before Reclassification Adjustment, Tax	6,386
Change in unrecognized pension benefit costs, net of tax	32,125
Change in unrecognized pension benefit costs, net of tax | Accounting Standards Update 2018-02	32,612		0		0		0		0		32,612
Unrealized (loss) gain on interest rate swap, tax	(81)
Unrealized gain on interest rate swap, net of tax	868
Unrealized gain on interest rate swap, net of tax | Accounting Standards Update 2018-02	(751)		0		0		0		0		(751)
Stock compensation	2,497		0		2,497		0		0		0
Balance, Ending at Dec. 29, 2018	1,665,203		145		377,419		(445,118)		2,009,233		(276,476)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Adoption of ASU		$ (100)
Adoption of ASU | Accounting Standards Update 2017-12		$ 0		$ 0		$ 0		$ 0		$ (11)		$ 11
Net earnings	352,240		0		0		0		352,240		0
Currency translation adjustments	7,066		0		0		0		0		7,066
Other Comprehensive (Income) Loss, Defined Benefit Plan, before Reclassification Adjustment, Tax	(11,914)
Change in unrecognized pension benefit costs, net of tax	(57,398)		0		0		0		0		(57,398)
Unrealized (loss) gain on interest rate swap, tax	(8,516)
Unrealized gain on interest rate swap, net of tax	(24,125)
Unrealized gain on interest rate swap, net of tax | Accounting Standards Update 2017-12	(24,136)		0		0		0		0		(24,136)
Stock compensation	8,133		0		8,133		0		0		0
Adjustments to Additional Paid in Capital, Stock Issued, Issuance Costs	1,850		0		1,850		0		0		0
Purchase of treasury stock	(6,144)		0		0		(6,144)		0		0
Balance, Ending at Dec. 28, 2019	1,946,814		145		387,402		(451,262)		2,361,462		(350,933)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Adoption of ASU 2017-12													$ 500
Adoption of ASU 2017-12 | Accounting Standards Update 2018-02														$ (1,600)
Adoption of ASU 2017-12 | Accounting Standards Update 2017-12	11												$ 0		$ 11
Net earnings	207,294		0		0		0		207,294		0
Currency translation adjustments	55,744		0		0		0		0		55,744
Other Comprehensive (Income) Loss, Defined Benefit Plan, before Reclassification Adjustment, Tax	(40,426)
Change in unrecognized pension benefit costs, net of tax	(172,583)		0		0		0		0		(172,583)
Unrealized (loss) gain on interest rate swap, tax	(7,147)
Unrealized gain on interest rate swap, net of tax	(20,656)		0		0		0		0		(20,656)
Stock compensation	19,613		0		19,613		0		0		0
Adjustments to Additional Paid in Capital, Stock Issued, Issuance Costs	25,987		2		25,985		0		0		0
Purchase of treasury stock	(85,872)		0		0		(85,872)		0		0
Adjustments to Additional Paid in Capital, Equity Component of Convertible Debt	(308)		0		(308)		0		0		0
Balance, Ending at Jan. 02, 2021	$ 1,976,649		$ 147		$ 433,308		$ (537,134)		$ 2,568,756		$ (488,428)